KR20050005827A - Under web base remote unmanned medium and small size the all type integrated system where the thought decisive system for the sewage and waste water management place for facility watch control water measurement and to the process optimum control - Google Patents

Abstract

PURPOSE: An integrated system combined with a decisive system for measuring a water pollution concentration and remotely monitoring/controlling facilities of a middle/small scale sewage and waste water processing field through the Internet is provided to secure a stable discharge water quality by making a decisive program automatically decide a water quality state, and inform/warn a worker of it. CONSTITUTION: A sample picker(1) pumps a sample discharged from each process. A real-time water quality measurer(2) measures the concentration/content of organics, hydrogen ion, and floating materials, and an electric conductivity of the sample. A PLC(Programmable Logic Controller) device(6) transfers operation state information of machinery equipment(11) and controls operation of the equipment depending on an operation condition. A decisive software program/operation management PC(5) is equipped with the decisive program to judging optimal process control by analyzing the water quality/equipment data. To control the operation of the sewage/waste water processing field, a signal transfer controller(7) transfers the signal to a remote management PC(9) through the Internet.

Description

(Under web base remote unmanned medium and small size the all type integrated system where the thought decisive system for the web-based remote unmanned small sewage water treatment plant facility monitoring control and water quality measurement and process decision management system) sewage and waste water management place for facility watch control water measurement and to the process optimum control}

The present invention uses the integrated integrated device to remotely monitor and control the operation status of each sewage treatment plant and the operation status of the sewage treatment unit equipment in real time, and to operate the water quality measurement data in real time and the operation and operation conditions of the treatment plant. The operation management PC that receives the data transmits the appropriateness of the current process status in real time to the remote central operator through the Internet-only network according to the logic embedded in the decision-making program. It is related to the integrated water quality monitoring integrated system that can operate the sewage treatment plant optimally by quickly and accurately controlling the unit process equipment in the sewage treatment plant by inputting on-site control data for normal operation.

In general, the sewage treatment plant is controlled using the classic PID control method. The setting of the target value had to be operated and managed by the operator according to the surrounding environment and the water quality. However, in Korea, where the four seasons are obvious, the water quality changes according to the season such as influent concentration and temperature, and for the proper operation, the control factor of the water treatment facility suitable for organic matter and advanced treatment changes whenever the water quality changes. The cumbersome work that has to be adjusted and the cost of management personnel have caused the plant to run poorly.

In the unit process facilities of these plants, mechanical equipment such as pumps, browers, and agitators, water quality measurement sensor devices such as COD, DO, pH, and SS, and PLC and multiple data processing devices for controlling equipment are separate products. Each has been installed. As a result, small-scale sewage treatment plant construction not only spends a considerable amount of money on construction costs, but each installation and maintenance cost also accounts for a large proportion, so that it is not properly operated and managed, thus ensuring stable discharge water quality due to deterioration of operational efficiency. They have been discharged to the rivers in poor condition, which has increased the pollution of the river water system.

In addition, the recent trend of remote automation for the monitoring and control of facility operation management has been on the rise as information technology-related new technology (IT) is rapidly incorporated in basic environmental facility management. The trend of introducing various systems and minimizing the management manpower for small and medium sized sewage treatment plants or small and medium sized sewage treatment plants at the village level, and minimizing the management manpower. There is a difficulty in maintenance. To solve this problem, the standardization of process operation and management work using domestic informatization technology is proposed as an alternative. At present, domestic technology is possible to remotely monitor remotely, but it is difficult to diagnose and control, so it is difficult to take appropriate measures in case of abnormality.

Recently, according to the trend of integrated management, the development of many communication and measurement technologies that can monitor and manage multiple facilities at remote sites have been advanced. However, if the abnormal state, which is the core of the plant management, is to be self-diagnosed and returned to normal state, it is still not much different from the existing method of normalizing on the basis of the observed results.

In order to solve the above problems, the device applies an abnormal diagnosis system and decision system to the sewage treatment facility, when an abnormal condition exceeding the legally regulated concentration of discharged water quality occurs due to changes in the water environment, equipment failure, or equipment failure. Alternatively, in case of abnormal discharge water quality condition that can occur even in the normal operation condition of the facility, the process analysis and the decision-making program with built-in logic of the control panel are automatically derived based on the accumulated data related to the facility and water quality. By determining the status, the real-time operation status data is transmitted and alerted to the operator through the Internet, and the control command from the remote site is received according to the judgment of the operator to remotely control the sewage treatment facility or the operator visits the site and checks the cause. To ensure stable discharge water quality It placed an emphasis on developing an integrated system.

The apparatus of the present invention is a tool that the administrator can access at all times at home, company or other public buildings for smooth remote automatic monitoring and control. In other words, by installing this development device for water quality measurement of sewage treatment plant and remote management of facilities, the year, month, week, and daily water quality data of the site can be easily received in the form of web documents and e-mails via the Internet. Analysis of the load change according to the decision program and the presence of abnormalities in the field should be confirmed immediately. In addition, the use of a dedicated web browser enables remote control of abnormal conditions so that even if management personnel are not directly placed on site, emergency recovery can minimize the time required for normalization and minimize management costs through emergency recovery. The control performance of sewage and wastewater treatment facilities was improved and stable water quality was made possible.

1 is a schematic diagram of a sewage treatment plant integrated monitoring, management system according to the present invention

2 is a flowchart of a decision system for analyzing operational status data according to the present invention.

3 is a block diagram of a database for each item for analyzing the operation status data according to the present invention

<Description of the symbols for the main parts of the drawings>

(1): sampling part (2): real time water quality measurement part

(3) Digital / Analog Converter (4): Low Temperature Sample Storage Box

(5): PC for operation management (6): PD device

(7): Signal transmission control device (8): LCD display device

(9): PC for remote management

In order to achieve the above object, the device of the present invention has a function of sampling and low temperature storage in case of abnormality of water quality measurement and measurement concentration, and also sewage treatment facility in a remote location using a sewage treatment facility control device including a decision system and an Internet dedicated line. It is to provide an integrated system that enables overall monitoring and control.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an integrated device according to the present invention, which includes a sample collection unit 1, a real-time water quality measurement unit 2, a low temperature sample storage box 3, a digital / analog conversion device 4 and a PLC device 6 and a doctor. It consists of PC (5) for operation management, LCD display device (8) and signal transmission control device (7) with a built-in decision program.

The first device of the present invention is a sample collection unit (1) to be able to quickly pump the sample discharged from each treatment process 10, the real-time water quality measurement unit (2) in the organic matter, hydrogen of the sample collected Ion concentration, electrical conductivity, and concentration and content of suspended solids are quickly measured, and the measured 4-20 mA analog water quality data values are transmitted to the PC 5 for operation management through the digital / analog converter 4. do. In particular, the decision management S / W was installed in the operation management PC (5), and this software stores the real-time water quality data values measured at the treatment plant, so that the characteristics and changes of the treatment plant water quality can be seen at a glance. It could be confirmed. In addition, according to the process analysis and judgment control logic derived from these data, it is possible to identify the abnormality of the process and to recognize the repetitive accidents by itself and to control it automatically or to inform the remote manager of the dangerous condition so that it can be quickly and easily taken action. To take. Therefore, in case of simple water quality abnormality caused by machine operation error, it provides convenience that the operator does not have to visit the site every time and control directly. In addition, each sewage treatment plant process facility 11 is able to confirm and control the operation through the PLC device (6). And by installing the LCD display output device (8), it is possible to immediately check the current processing state and the operating state of the equipment, can reduce the time required to find the cause in case of failure or abnormal condition of the water quality and the operation of the operator Also made easy. The measured electrical signals and data from the operation management PC 5 are transmitted to the remote management PC 9 safely and quickly through the signal transmission control device 7. In addition, the operation management PC (5) sets the water quality standard of each treatment plant exceeding a certain concentration and content, and automatically collects and discharges the sample discharged when discharging the pollutant exceeding the set reference value in real time in a low temperature sample storage (3). The stored samples are stored at room temperature or low temperature, and the stored samples are analyzed by a laboratory or an accredited institution, and the accredited institution confirms the normal measurement of the instrument data so that the operator and manager's treatment plant can be checked efficiently. Water quality monitoring and operation control integrated integrated device.

Figure 2 shows a flow chart of the operation status derivation process by the unit process decision control program of the treatment plant. The built-in decision S / W of the operation management PC receives the data of the operating state of the machine from the PLC device 6 to form a machine history data base, and at the same time converts the digital / analog into the system. Construct a water quality measurement data base for the water quality measurement concentration received from the device (4). By interfacing and combining these two data bases, real-time data between each data base according to the process decision control logic is compared, calculated, and inferred to derive abnormal and normal conditions for the current operation. At this time, the derived operation status is output to the LCD display device 8 of this system, and at the same time, the operation status data is transmitted to a remote operator and an alarm is generated when an abnormality occurs.

The remote operator analyzes and judges the operation status data derived from the system decision program, identifies the cause of the abnormal condition of the processing plant, and inputs control commands for stable operation to control the mechanical equipment of the remote processing plant. In addition, when it is judged that the cause of the abnormal condition is in the mechanical equipment and the measuring device itself, the operator visits the site and checks the equipment and the mechanical equipment of the system, and is composed of a system that enables stable operation.

3 is a diagram showing the configuration of the database for each item for the installation instrument and the equipment in the treatment plant for the operation support S / W to analyze the operation status of the sewage treatment plant. The sewage and wastewater treatment plant currently installed and operated has a complicated variety of measuring instruments and equipments according to the scale and method of construction. However, as shown in Figure 3 attached to the operation support decision S / W of the system, the operation data of the instrument and the equipment installed in the processing plant by combining similar items in the data management and the database to configure the transmission of abnormal information from the lower database Step by step, a series of data calculation tasks such as collection and comparison correlation analysis with the upper database in each item database determines the operation status appropriate to the current situation according to the control logic embedded in the decision support software for operation support. The determined operation state of the operation support decision S / W is to perform the preventive measures of the treatment plant in the order described in the accompanying drawings.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, according to the present invention, by using the integrated system for water quality monitoring and the control of the mechanical equipment in which the decision system software is built, it is possible to check whether the treatment process is properly performed. Judgment is effective in preventing the cause of failure to secure stable water quality. In addition, when a repetitive accident occurs due to a simple device failure, it is easy to find the cause, take quick action, and control it remotely through the Internet network, thereby preventing time wastage. Nowadays, it is difficult to place field workers properly due to the simple task of avoiding simple tasks, and it is possible to reduce the manpower cost, which accounts for the most of the plant operation and management costs, so that the plant can be operated efficiently, economically and stably. . This device integrates a decision-making system capable of remote monitoring of water quality measurement and control of mechanical facilities, and can improve the operational efficiency of many small sewage treatment plants that cannot be operated normally. Also, the equipment itself can help economically and efficiently. Can be. Given that the plan for the installation of sewage treatment plants is being promoted nationwide, the demand is expected to increase significantly.

Claims (2)

Sample collection unit 1 for pumping the sample discharged from each treatment step 10 to measure the degree of water pollution; A real-time water quality measurement unit 2 for measuring the concentration and content of organic matter, hydrogen ion concentration, electrical conductivity or suspended matter in the pumped sample; A digital / analog converter 4 for converting a measurement signal of measured water pollution data; A low temperature sample storage box in which the sample is automatically collected and stored in a sample storage box in real time when the set pollution concentration threshold is exceeded; A PLC device 6 capable of transmitting information of the operating state of the sewage treatment plant machinery 11 and controlling the operation of the plant according to the operating conditions of the machinery facility; An operation management PC (5) having a built-in decision program capable of determining optimum process control by analyzing water pollution data and process facility data; An LCD display output device (8) capable of displaying processing equipment and water quality measurement data; Web-based remote unmanned small and medium sized sewage treatment plant facility comprising a signal transmission control unit (7) that can be transmitted to the remote management PC (9) using an Internet-only network to remotely control the operation status of the sewage treatment plant. All-in-one integrated system that combines decision-making system for water quality measurement and process optimization for monitoring and control. The method of claim 1, The driving management PC (5) for monitoring and controlling the entire sewage treatment plant is a driving management PC (5) located at the bottom of the LCD display output device (8), and the water quality measurement data and the PEL received from the digital / analog converter (4). The real-time data of the database where the operating state data of the machine equipment inputted from the seed device 6 is stored through the database base interface in the program, and the normal operating status range according to the sewage treatment plant process analysis and control panel logic embedded in the decision program. The decision-making program is automatically controlled without the help of a professional manager.In the event of abnormal operation, a signal transmission device is provided to remote operators to provide real-time water quality data of the treatment plant and to send alarms of abnormal situations. Determine and analyze the information provided by the decision-making program Control command according to the control, the operation management PC (5) is characterized in that the control of the sewage treatment facility is made by receiving the control command data through the signal transmission control device 7 to cope with abnormal operation. An integrated system that combines a decision-making system for water quality measurement and process optimization for web-based remote unmanned small and mid-sized sewage treatment plants.